header h1 {
  width: 60px;
}
header .search {
  width: 90%;
}
header .search input {
  padding-left: 30px;
  width: 100%;
  height: 35px;
  border: none;
  border-radius: 10px;
  background-color: #f3f1f1;
}
main .list .item img {
  width: 45px;
  height: 45px;
}
main .message-list img {
  width: 45px;
  height: 45px;
}
footer {
  bottom: 0;
  z-index: 2;
}
